Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 13 Next capture
2021 2022 2023
1 capture
13 Jun 22 - 13 Jun 22
sparklines
Close Help
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
0
Question by Hansolo776 · Sep 28, 2014 at 06:48 PM · memoryfaster

Use new vector3 or a already defined vector3?

Hey,

So I was thinking about what is faster, I am developing a game for my android mobile so I want to make it as smooth as possible.

Is it faster to use a already defined vector3 and change its properties every frame:

 private vector3 sampleVector;
 
 Update(){
 
    sampleVector = new vector3(1 * Time.time, 0, 0);
 
    go1.transform.position = sampleVector;
 
 }

or just use new vector3 every frame:

 Update(){
 
    go1.transform.position = new vector3(1 * Time.time, 0, 0);
 
 }

I think the second one is better but one of my teachers mentioned something that the first one is better/faster because the memory is already saved.

Comment
Add comment · Show 1
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Eric5h5 · Sep 28, 2014 at 07:00 PM 0
Share

Both of these code examples are creating new Vector3s.

1 Reply

· Add your reply
  • Sort: 
avatar image
0
Best Answer

Answer by tanoshimi · Sep 28, 2014 at 06:52 PM

A Vector3 is a struct, so defining a new Vector3 requires very little overhead - memory gets allicated straight on the stack and doesn't involve the garbage collector at all.

If you really want to find out which is better, create a test that executes each version 100,000 times and profile the results, but I would be very surprised if the results are significant enough to consider worrying about.

Comment
Add comment · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Follow this Question

Answers Answers and Comments

3 People are following this question.

avatar image avatar image avatar image

Related Questions

A node in a childnode? 1 Answer

Mesh Renderer and Memory 2 Answers

Unable to free resources from memory 0 Answers

how much memory is unity when installed? 2 Answers

Unity running out of memory 1 Answer


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges